MSRV is now 1.56

Author: mitsuhiko

.github/workflows/tests.yml

@@ -18,14 +18,14 @@ jobs:
         run: make test
 
   build-stable:
-    name: Test on 1.42.0
+    name: Test on 1.56.0
     runs-on: ubuntu-latest
 
     steps:
       - uses: actions/checkout@v1
       - uses: actions-rs/toolchain@v1
         with:
-          toolchain: 1.42.0
+          toolchain: 1.56.0
           profile: minimal
           override: true
       - name: Test

Cargo.toml

@@ -14,7 +14,7 @@ keywords = ["proc", "spawn", "subprocess"]
 readme = "README.md"
 autoexamples = true
 autotests = true
-rust-version = "1.42.0"
+rust-version = "1.56.0"
 
 [package.metadata.docs.rs]
 all-features = true

README.md

@@ -3,7 +3,7 @@
 [![Build Status](https://github.com/mitsuhiko/procspawn/workflows/Tests/badge.svg?branch=master)](https://github.com/mitsuhiko/procspawn/actions?query=workflow%3ATests)
 [![Crates.io](https://img.shields.io/crates/d/procspawn.svg)](https://crates.io/crates/procspawn)
 [![Documentation](https://docs.rs/procspawn/badge.svg)](https://docs.rs/procspawn)
-[![rustc 1.42.0](https://img.shields.io/badge/rust-1.42%2B-orange.svg)](https://img.shields.io/badge/rust-1.42%2B-orange.svg)
+[![rustc 1.56.0](https://img.shields.io/badge/rust-1.56%2B-orange.svg)](https://img.shields.io/badge/rust-1.56%2B-orange.svg)
 
 This crate provides the ability to spawn processes with a function similar
 to `thread::spawn`.  Instead of closures it passes [`serde`](https://serde.rs/)

src/core.rs

@@ -253,7 +253,7 @@ fn bootstrap_ipc(token: String, config: &ProcConfig) {
                 Ok(sender) => sender,
                 Err(err) => {
                     if !is_benign_bootstrap_error(&err) {
-                        Err::<(), _>(err).expect("could not bootstrap ipc connection");
+                        panic!("could not bootstrap ipc connection: {:?}", err);
                     }
                     process::exit(1);
                 }
@@ -349,7 +349,7 @@ unsafe fn run_func<A, R>(
                 // waited for the call, so we just ignore it.
             }
         } else {
-            Err::<(), _>(err).expect("could not send event over ipc channel");
+            panic!("could not send event over ipc channel: {:?}", err);
         }
     }
 }

src/proc.rs

@@ -232,7 +232,7 @@ impl Builder {
             env::current_exe()?
         };
         let mut child = process::Command::new(me);
-        child.envs(self.common.vars.into_iter());
+        child.envs(self.common.vars);
         child.env(ENV_NAME, token);
 
         #[cfg(unix)]